Prokart Super Single Series Technical Regulations. Rev 1 - January 2019

Transcription

1 Prokart Super Single Series 2019 Technical Regulations. Rev 1 - January 2019 PART A: General. The purpose of these technical regulations is to ensure that all competitors will, as far as possible, be able to compete with equipment that is of an equivalent standard. It is also the objective of these technical regulations to contain the costs of acquiring and maintaining equipment. To ensure compliance all components comprising the engine package i.e. Clutch sprocket, clutch drum, rear sprocket, exhaust manifold, silencer etc. will be stamped with an identifying stamp. Teams should make arrangements to have these components stamped by no later than round 2 of the 2018 season. 1. Kart Numbers Each kart shall be identified prior to scrutineering by opaque flexible plastic number plates affixed to the kart itself and facing front and to the rear. Bibs & rear bumpers: Minions 10cm (100mm) minimum Midgets 12cm (120mm) minimum All other Classes 14cm (140mm) minimum Competition numbers must be present and legible on the side pods in the same upright bold fonts as above. The backing for these side pod numbers must be the class colour. No other colours are permitted. For the purpose of TV & marketing, the recommended size for these numbers is 80mm 1.3. The backing must be of a uniform single colour as defined in these regulations. The numbers must be standard font ARIAL or similar and in an unbroken colour without borders, edging or shadow For the purpose of timekeeping all race numbers must be bold upright (no italics) font similar to ARIAL. Script type numbers are not permitted. Neither neon coloured numbers and or backgrounds are permitted 1.5. It is permissible that numbers and background may be painted on bodywork having a flat or minimal curved surface providing the numbers can be easily read at an oblique angle 45 from the front by the Timekeepers/Lap Scorers. The numbers and background must comply with the above requirements in respect of dimension and colours. The plates must be fixed in such a manner so as not to bend or otherwise change their attitude in the airflow Any team not conforming may be black flagged Prokart Super Single class reserves the first 10 numbers in the allocated number series to denote the finishing order of the previous year Championship results. Any teams selecting other numbers must advise the Organizer within 10 days of the first event. A kart that is sold to a new team, or a team that changes its name, during the current season, must apply for a new number. Numbers allocated to teams will become available for reallocation if a team fails to register for the new season Any other numbers must also be registered in the same time frame, if out of sequence, or special numbers Prokart Super Single Endurance Yellow backing plate with black numbers Prokart Super Single Sprint Series White backing plate with black numbers If registered for both Prokart Super Single Endurance and Sprint Series - Light blue with black numbers. 1

2 1.12. Champions in the various classes will be allocated the number 1 with appropriate backing plate and number colour for the class All novice drivers are required to wear an X on the back of their crash helmets and the rear number plate, for at least two races at the discretion of the Clerk of the course. 2

3 2. The broader spectrum of Technical Control: 2.1. The Organizer reserves the right to inspect or halt any kart which is deemed to have been illegally modified, in any way. If the motor/s has to be dismantled, the cost of reassembly is for the account of the owner of that kart Where not specifically mentioned in these technical rules, any change to the technical specifications of any kart is disallowed This includes and is not limited to: Engines Drive Train Brakes Chassis Wheels Tyres Seats Rear Axle Side Pods and other plastics Fuel At any time, during or between events, the Organizer, the CTC, or the Clerk of the course may be approached regarding this matter, providing the protest procedure per paragraph 13 of the Rules and Regulations is adhered to. In the event of a dispute, any contravention of the technical regulations will be deemed to afford an advantage, until the contrary is proven beyond reasonable doubt, by the entrant/competitor Only homologated parts are accepted, except where specifically allowed, any other variations made are deemed to be illegal This includes and is not limited to: Adding additional components to any part of your engine and connected parts that are not specifically allowed in these rules. Should you wish to confirm technical validity of such, it must be presented to the committee first prior to raceday for consideration before it being allowed by way of including it in this rules. 3. Teams remain responsible for the kart presented for scrutineering, and if found to be contravening specification, cannot blame a third party for the infringement. 4. Engine strip as a result of protest or Clerk of the Course instruction The engine/s will be removed in parc ferme immediately after the completion of an event and placed in a sealed box. The team manager will sign the Notification to present engine/s for stripping. The engines will be sent to the officially appointed engine builder who will strip the engine and submit a report to the event officials for adjudication of the protest. The inspection process will involve the stripping of the entire engine, which will require the replacement of certain parts and gaskets at a cost to the team or team that lodged the protest, depending if the protest is upheld or not The officials of the event will make a ruling. Once the ruling has been passed down to the competitor the engine will be reassembled and sealed by the officially appointed engine builder The engine/s will not be released back to the team until the cost of stripping, assembly and parts have been paid to the organiser Please refer to section 6 for further details on Dyno procedures. 3

4 5. Engine strip as result of broken seals For the procedure for stripping, assembling and sealing an engine/s as a result of broken seals please refer to paragraph 3 above. 6. Voluntary and Mandatory dyno testing and sealing of engines Teams may voluntarily submit their engines (with unbroken seals) for re-sealing and/or servicing at any time during the year Teams are required to present their engines for mandatory dyno of engines throughout the year according to below: All engines must be presented for dyno testing after every 5 events Where an engine has not been presented for mandatory dyno testing after 5 consecutive races, points will be withheld from that team for future events until testing has been done Committee will provide engine seal, serial, result and dyno testing dates for all teams to view 6.3. This will not involve a full engine strip, unless the officially appointed engine builder finds an infringement of the technical regulations The cost for testing engines are for the competitor at the prevailing rate provided by the engine builder The cost for servicing will be at the current rate provided by the official engine builder per engine plus the cost of the new seals and any parts that may be required to bring engine into the required specifications. A full service will consist of clutch, oil change, spark plug, tappet reset. 7. Engines removed for testing need to include fuel line from the fuel pump onwards, as well as the exhaust system and throttle system. Note: It is up to each team to determine whether any changes they make are accepted within the ambit of these rules. Any variance to these rules is considered a breach of these regulations. 8. General Dyno Procedure: 8.1. Contact 4StrokeWorkshop to arrange your dyno booking Drop off your engine at 4StrokeWorkshop StrokeWorkshop will provide an indication as to when the engine will be completed. Please call and confirm that the engine is ready for collection prior to arriving at the workshop Official results will be reported to you from the dyno and you may collect your motor. The committee will be made aware of any report worth noting Full dyno testing parameters and results will be made available to the committee 8.6. If engine is overpowered, changes will need to be made to bring the motor back into the right specifications. Seal will be broken, and changes made and resealed. It is for your cost to bring the motor back into spec if parts are required. 4

5 If the engine is overpowered and the official report provided by the engine builder states that it is overpowered because of incorrect parts being used or unauthorized changes made to the engine not within the Prokart rules, then the engine may be found to be illegal as a results of this. If the engine was pulled on a race day, the results for the day may be changed and the competitor disqualified from results if found illegal If engine is underpowered, changes can be done to bring back into spec at your request and at your cost. Seal will be broken and resealed once complete. It is for your cost to bring the motor back into spec When engine is pulled on a race day, it will be boxed and sealed in the presence of the COC, Scrutineer and competitor and will remain sealed until the day of the dyno. At least one additional Committee member will be present during the dyno run as witness. The Prokart SSS Club will carry the cost of this dyno test session. Costs to bring the engine back into spec and sealed again if found overpowered will be for the competitor. It is the competitor s choice to bring back up to spec and sealed again if the motor is underpowered, this will be for their own cost too. If the motor is found to be illegal, it will be reported to the committee with a full report and the reasons for it being illegal No team member or team manager or Prokart Committee member who is also a driver member for the same class (to avoid a potential conflict of interest) will be allowed to be present during dyno testing. This is to protect the interests of the club, the engine builder and to ensure the process cannot be influenced by others in any way. SPECIAL NOTE: It must be made clear that the engine builder provides the service of engine dyno exclusively to the Prokart SSS Club. The process of executing a dyno run takes time and must be executed in a controlled environment by a trained professional using specialist equipment. A typical dyno run can take up to 1 hour if there are no issues. Your motor is also inspected for technical compliance prior to the dyno run i.e. spark plugs, carburettor, exhaust etc. This takes time and must be conducted with focus and no distractions. Making changes to the motor to bring into spec can take several hours depending on the changes required. The engine builder will not be able to offer a service where you arrive and dyno. The club has asked 4StrokeWorkshop to ensure that this is not entertained and that it is not acceptable to have teams present during every dyno test. If one team is entertained to be present during the dyno, then all other teams need to be entertained as well, which is not practical and is counterproductive and doesn t allow for planning to be done. One cannot expect that the dyno only be run when all parties are present and available. This was allowed in the past and resulted in many frustrated people trying to coordinate dates and times and also resulted in individual opinions getting in the way of the experts doing their work. We ve had teams present during a dyno, and then team members who were not present at the time laying complaints with the committee that the dyno was not done properly since they didn t like the results. It is unfair to 4StrokeWorkshop to entertain such and to accept abuse from our members where some would argue that the dyno is not being done correctly or fairly when they themselves have not received the proper training on how the equipment and process works or may be pushing their own agenda. Entertaining this results in unnecessary disputes that the committee has decided not to entertain again in future. 5

6 In exceptional circumstances, you can request that an additional NON DRIVER MEMBER of the committee be present during your dyno test. This is the norm when an engine is pulled on a race day by race officials. At present, Marc Vere has been appointed to oversee such seeing that he also represents the interest of Honda SA. 6

7 9. Mechanical changes and allowances during an event Only one kart (chassis) may be used per team in any one event Any components may be changed during the race, including the motor/s, as long as the changes comply with the rules, and have been presented for scrutineering prior to being fitted All work/repairs on karts that require any kind of tool are to be carried out in the competitor s pit or designated pit area where drivers can safely work on their karts and not in the driver change/refuel area This includes any work that requires cable ties or tape This includes any work that requires any kind of tool 10. To, reduce costs, the following are NOT allowed Special tyre changing equipment other than standard tyre changing tools supplied for use in karting Tyre warmers or tyre chemicals No pit to driver communications On board tuning devices No fuel additives You MAY NOT open and build your own engines You MAY NOT use any other equipment on the engine assembly not permitted in these rules. It is expected that you race with parts as originally supplied and no modifications are allowed Transponders Transponders must be mounted on the bib on a vertical line that intersects at 90 degrees to the horizontal line between the stub axles. NB: If it is not in these rules it is not permitted. NB: It is not the responsibility of the engine builder to automatically increase the engine power to the maximum output allowed in these regulations. This will only be done at the specific instruction of the team as an extra cost modification. 7

8 PART B: ENGINES. NB: It is not the responsibility of the engine builder to automatically increase the engine power to the maximum output allowed in these regulations. This will only be done at the specific instruction of the team as an extra cost modification CLASS (ENDURANCE AND SPRINT 390) 1.1. ENGINES Only Honda GX 390 model T1, T2 and H1 OEM engines supplied by 4 Stroke Workshop or supplied in original box and remains sealed in the box, stock engines will be allowed to compete in the series. Engines supplied will be sealed, together with a dynamometer report indicating that the horsepower is within the following parameters Only OEM Honda or Hoffman carburettors with size.92 jet and standard emulsion tube are permissible Only OEM Briggs and Stratton series approved fuel pumps are permissible Horsepower = Max: 22.5 as per the software output of the dynamometer calibrated at the beginning of the season. Upgrades to the dynamometer s sensors and software modules may require re-calibration of the dynamometer itself, resulting in a change of the maximum horsepower reading. This may result in a different reading as per the regulations and members will be notified of this when the dynamometer changes. All care is taken to ensure that when re-calibration occurs resulting in a change in readings, the maximum output reported by the software is still in line with the series base tests at the beginning of the season. So in the event the dynamometer has a different reading to the base reading, all new tests will be conducted according to the new base test results The following modifications, to be carried out by the appointed engine builder only, will be permitted: The governor may be removed The oil cut out relay may be removed Accelerator linkages and routing are free. Only foot operated accelerator mechanisms are permitted Air induction is by means of the standard OEM air filter, or as an option, the K&N Red filter may be substituted Exhaust and manifold. Only standard exhausts and manifolds as supplied with engine package are permitted Spark plugs. Only NGK BPR6ES spark plugs are permitted. Spark plugs must remain standard. Filing of electrodes or machining of thread body to allow indexing is strictly forbidden. 8

9 An OEM electric self-starter may be fitted All motors must remain sealed at all times. Broken seals will lead to exclusion from the results and technical check of the motor Where necessary for repairs, and to keep costs under control, only the Official Engine builder may substitute OEM Honda parts with compatible OEM Hoffmann parts and vice versa New engines supplied with a temporary seal, may be run in and used in ONE race. The engine MUST be returned to the officially appointed engine builder after one race, to be dynamometer tested and a permanent seal fitted. Failure to return the engine before the next race will result in the engine being impounded at the next race to be dynamometer tested and sealed. Penalty as per penalty schedule An engine may be changed during an event provided it has been dyno tested and sealed by the officially appointed engine builder, scrutinised and a scrutiniser s sticker affixed for that event. Penalty as per penalty schedule Drive train The drive train consisting of clutch, sprockets and chain will be supplied with the engine, when purchased Final drive. The final drive will be by chain and sprocket as specified by the organiser Front sprocket = 15 teeth of.428 pitch Rear sprocket = 45 teeth of.428 pitch Chain =.428 pitch Clutch. Noram Premier centrifugal dry type clutch with blue springs as supplied by the organiser, to allow a clutch engagement speed of 2200rpm Brakes and Braking system The brake system is free within the following parameters Single disc acting on the rear axle One single piston OEM brake calliper as supplied with chassis One two piston aftermarket replacement brake calliper of the following type: Speed EVO system. Homologation number: CIK/FIA153-16/FR/ /FR/ Kelgate 9

10 A back up cable operated brake linkage must be fitted to all karts Chassis Chassis are not controlled, but must be FIA/CIK homologated chassis Wheels and tyres Only full slick tyres are allowed Front maximum wheel width between bead = 135mm. Rear wheel width between bead = 215mm Kindly ensure your wheels comply with this rule to avoid penalty ENDURANCE TYRES: Tyres front = 10x4.60-5, MG compound rating VK Tyres rear = 11x7.10-5, MG compound rating VK Endurance teams may use a maximum of 4 sets of tyres for a full season, except where explicitly allowed otherwise in the regulations for a particular event. Refer to penalty schedule for noncompliance SPRINT 390 TYRES: Tyres front = 10x4.60-5, MG compound rating VK Tyres rear = 11x7.10-5, MG compound rating VK Sprint teams may use a maximum of 4 sets of tyres for a full season, except where explicitly allowed otherwise in the regulations for a particular event. Refer to penalty schedule for noncompliance Teams must purchase MG tyres from 4StrokeWorkshop, who will then register/allocate serials against kart registered in the series and be allocated. Teams may purchase and use all allocated sets of tyres for the entire year upfront if they wish and alternate use of each set between race meetings. Tyres cannot be mixed at the same race meeting. Once a set of tyres have been registered/scrutineered for use for that race meeting unless allowed by the COC under exceptional circumstances (damaged tyres). 10

11 In order for the club to ensure affordable pricing for the supply of MG tyres, we appeal to all members to procure new sets from 4Strokeworkshop. It will also be allowed that the use of tyres handed out at the 24 Hour race in 2018 will be accepted for use in the 2019 season as part of your annual allocation, since these serials are tracked and we are able to monitor It is prohibited to use any chemical treatment, or other means to artificially enhance the performance of tyres during official practice, qualifying and racing All tyres must be registered / marked by the Chief Scrutineer or his assistant. It is the team s responsibility to ensure all race tyres are marked before an event, or that previously used race tyres are on the kart before scrutinizing on the day. Tyres are marked and registered against the name of the competing team A register will be kept, noting all team tyre serials and event dates Note: A race meeting (event) may consist of more than one heat From the start of any event, only the marked tyres may be used. Tyre identification maybe checked at any time during an event. Tyre/s rendered unusable, in the opinion of the Clerk of the course and the Technical Consultant, during an event may be replaced. They must be replaced with used tyres, whether previously marked or not. The replaced tyre/s must be marked/remarked, before being fitted under the control of the Technical Consultant. No penalty applies if this procedure is followed An electronic log will be implemented to control the above regulations. (Only officially appointed persons can enter the data into the log.) 1.7. Rear axle The rear axle will be of hollow steel with an outside diameter of 50mm or 40mm (depending on the chassis standard fittings). No differential of any type is permitted. Maximum width of the rear axle, measured between the outer edges of the wheel rims, must not EXCEED 1400mm 1.8. Minimum weight The minimum weight of the kart including driver will be 185kg from commencement of free practice. All ballast MUST be attached to the kart chassis in a suitable weight bracket. See Penalty Schedule document for underweight penalties Penalty for infringing: Underweight penalty as per penalty schedule 1.9. Seats. 11

12 Only seats approved by the Organizer may be used Side pods, bibs, rear bumpers and nose cones: All karts will be equipped with the regulation side pods, bibs and nose cones. As specified by the organizer or FIA/CIK homologated units. They shall remain in position at all times. No substitutes allowed Fuel Teams will provide their own fuel for practice qualifying and race. Only 93 or 95 Octane pump fuel is permitted. For the race, fuel must be placed, in suitable containers clearly marked with the team name, in the refuel area. Refer to rule 12 of the Prokart Rules and Regulations for refuelling procedure Fuel may not be stored in competitor pits after the start of free practice Fuel additives are not permitted. The organizer reserves the right to replace any fuel suspected of having additives ANY modifications to the flow of fuel from the fuel tank through the carburettor are not allowed. This includes modifications and/or addition of parts to fuel pumps, fuel lines, carburettors, fuel coolers and any other part that controls the delivery of fuel to the engine. This will immediately be deemed an advantage over others and penalty will be applied as per the penalty schedule Repairs, servicing and maintenance of engines Routine servicing and maintenance, such as oil, filters, spark plug changes, clutch lubrication and tappet clearance settings may be undertaken by the team. Any repair or maintenance that requires the engine seal to be broken MUST be undertaken by the officially appointed engine builder Repairs, rebuilding and maintenance of engines All engines will be sealed, at all times, by the officially appointed engine builder for each Class Should an engine/s need to be worked on, parts replaced, or a general check be done to the motor\s, the following procedure will be adhered to: The engine will be delivered to the officially appointed engine builder for that Class. All work will be carried out by the officially appointed engine builder, after which the motor\s will be resealed. Numbered seals will be fitted to each engine prior to delivery by the Organizer. These must remain intact. A broken seal will result in exclusion. 12

13 In order to control the parts used and or replaced, only OEM engine spares available from an appointed OEM agent will be accepted as replacement engine parts. Any parts requiring further machining will be carried out by an approved engineering company. During this stage the balance of the motor\s will remain in the custody of the officially appointed engine builder until such time as the refurbished parts are returned and checked for compliance by the CTC of the series The only person allowed to strip and reassemble any motor/s is the officially appointed engine builder or his appointed representative for each class Motors must be presented with intact seals Official engine builder Stroke Workshop, 23 Fortress road, Rhodesfield, Kempton is the officially appointed engine builder. 4 Stroke Workshop will be responsible for the servicing, repair, sealing, dyno testing of all engines to be used in the Prokart Super Single Series. It is the responsibility of the official engine builder to report any irregularities and to maintain a log book of all engines in the series, in which will be recorded the engine make and model, plus dyno results after each dyno test. It is the explicit wish of the Organizer that this series becomes a training ground and a natural outlet for persons wishing to compete under normal motor sport conditions. The series is designed to be affordable, fair and for your enjoyment and your training to greater heights, let s keep it that way. 13

14 2. SPRINT 200 CLASS 2.1. ENGINES Only Hoffman 212cc OEM engines supplied by 4StrokeWorkshop, stock engines will be allowed to compete in the series. Engines supplied will be sealed, together with a dynamometer report indicating that the horsepower is within the following parameters Horsepower = Max: 15 as per the software output of the dynamometer calibrated at the beginning of the season. Upgrades to the dynamometer s sensors and software modules may require re-calibration of the dynamometer itself, resulting in a change of the maximum horsepower reading. This may result in a different reading as per the regulations and members will be notified of this when the dynamometer changes. All care is taken to ensure that when re-calibration occurs resulting in a change in readings, the maximum output reported by the software is still in line with the series base tests at the beginning of the season. So in the event the dynamometer has a different reading to the base reading, all new tests will be conducted according to the new base test results The following modifications, to be carried out by the appointed engine builder only, will be permitted: The governor may be removed The oil cut out relay may be removed Accelerator linkages and routing are free. Only foot operated accelerator mechanisms are permitted Air induction is by means of the standard OEM air filter, or as an option, the K&N Red filter may be substituted Exhaust and manifold. Only standard exhausts and manifolds as supplied with engine package are permitted Spark plugs. Only NGK BPR6ES spark plugs are permitted. Spark plugs must remain standard. Filing of electrodes or machining of thread body to allow indexing is strictly forbidden An OEM electric self-starter may be fitted All motors must remain sealed at all times. Broken seals will lead to exclusion from the results and technical check of the motor Where necessary for repairs, and to keep costs under control, only the Official Engine builder may substitute OEM Honda parts with compatible OEM Hoffmann parts and vice versa New engines supplied with a temporary seal, may be run in and used in ONE race. The engine MUST be returned to the officially appointed engine builder after one race, to be dynamometer tested and a 14

15 permanent seal fitted. Failure to return the engine before the next race will result in the engine being impounded at the next race to be dynamometer tested and sealed. Penalty as per penalty schedule An engine may be changed during an event provided it has been dyno tested and sealed by the officially appointed engine builder, scrutinised and a scrutiniser s sticker affixed for that event. Penalty as per penalty schedule Drive train The drive train consisting of clutch, sprockets and chain will be supplied with the engine, when purchased Final drive. The final drive will be by chain and sprocket as specified by the organiser Front sprocket = 13 teeth of.428 pitch Rear sprocket = 48 teeth of.428 pitch Chain =.428 pitch Clutch. 4StrokeWorkshop Steel clutch as supplied by 4StrokeWorkshop Brakes and Braking system The brake system is free within the following parameters Single disc acting on the rear axle One single piston OEM brake calliper as supplied with chassis One two piston aftermarket replacement brake calliper of the following type: Speed EVO system. Homologation number: CIK/FIA153-16/FR/ /FR/ Kelgate A back up cable operated brake linkage must be fitted to all karts Chassis Chassis are not controlled, but must be FIA/CIK homologated chassis Wheels and tyres Only full slick tyres are allowed 15

16 Front maximum wheel width between bead = 135mm. Rear wheel width between bead = 215mm Kindly ensure your wheels comply with this rule to avoid penalty Tyres front = 10x4.50, Mojo C Tyres rear = 11x7, Mojo C It is prohibited to use any chemical treatment, or other means to artificially enhance the performance of tyres during official practice, qualifying and racing Sprint 200 teams may use a maximum of 2 sets for a full season, except where explicitly allowed otherwise in the regulations for a particular event. Penalty as per penalty schedule A register will be kept, noting all team tyre serials and event dates Note: A race meeting (event) may consist of more than one heat From the start of any event, only the marked tyres may be used. Tyre identification maybe checked at any time during an event. Tyre/s rendered unusable, in the opinion of the Clerk of the course and the Technical Consultant, during an event may be replaced. They must be replaced with used tyres, whether previously marked or not. The replaced tyre/s must be marked/remarked, before being fitted under the control of the Technical Consultant. No penalty applies if this procedure is followed An electronic log will be implemented to control the above regulations. (Only officially appointed persons can enter the data into the log.) 2.7. Rear axle The rear axle will be of hollow steel with an outside diameter of 50mm or 40mm (depending on the chassis standard fittings). No differential of any type is permitted. Maximum width of the rear axle, measured between the outer edges of the wheel rims, must not EXCEED 1400mm 2.8. Minimum weight The minimum weight of the kart including driver will be 130kg from commencement of free practice. All ballast MUST be attached to the kart chassis in a suitable weight bracket. See Penalty Schedule document for underweight penalties Penalty for infringing: Underweight penalty as per penalty schedule 2.9. Seats. 16

17 Only seats approved by the Organizer may be used Side pods, bibs, rear bumpers and nose cones: All karts will be equipped with the regulation side pods, bibs and nose cones. As specified by the organizer or FIA/CIK homologated units. They shall remain in position at all times. No substitutes allowed Fuel Teams will provide their own fuel for practice qualifying and race. Only 93 or 95 Octane pump fuel is permitted. For the race, fuel must be placed, in suitable containers clearly marked with the team name, in the refuel area. Refer to rule 12 of the Prokart Rules and Regulations for refuelling procedure Fuel may not be stored in competitor pits after the start of free practice Fuel additives are not permitted. The organizer reserves the right to replace any fuel suspected of having additives ANY modifications to the flow of fuel from the fuel tank to the carburettor are not allowed. This includes modifications and/or addition of parts to fuel pumps, fuel lines, carburettors and any other part that controls the delivery of fuel to the engine. This will immediately be deemed an advantage over others and penalty will be applied as per the penalty schedule Repairs, servicing and maintenance of engines Routine servicing and maintenance, such as oil, filters, spark plug changes, clutch lubrication and tappet clearance settings may be undertaken by the team. Any repair or maintenance that requires the engine seal to be broken MUST be undertaken by the officially appointed engine builder Repairs, rebuilding and maintenance of engines All engines will be sealed, at all times, by the officially appointed engine builder for each Class Should an engine/s need to be worked on, parts replaced, or a general check be done to the motor\s, the following procedure will be adhered to: The engine will be delivered to the officially appointed engine builder for that Class. All work will be carried out by the officially appointed engine builder, after which the motor\s will be resealed. Numbered seals will be fitted to each engine prior to delivery by the Organizer. These must remain intact. A broken seal will result in exclusion. 17

18 In order to control the parts used and or replaced, only OEM engine spares available from an appointed OEM agent will be accepted as replacement engine parts. Any parts requiring further machining will be carried out by an approved engineering company. During this stage the balance of the motor\s will remain in the custody of the officially appointed engine builder until such time as the refurbished parts are returned and checked for compliance by the CTC of the series The only person allowed to strip and reassemble any motor/s is the officially appointed engine builder or his appointed representative for each class Motors must be presented with intact seals Official engine builder Stroke Workshop, 23 Fortress road, Rhodesfield, Kempton is the officially appointed engine builder. 4 Stroke Workshop will be responsible for the servicing, repair, sealing, dyno testing of all engines to be used in the Prokart Super Single Series. It is the responsibility of the official engine builder to report any irregularities and to maintain a log book of all engines in the series, in which will be recorded the engine make and model, plus dyno results after each dyno test. It is the explicit wish of the Organizer that this series becomes a training ground and a natural outlet for persons wishing to compete under normal motor sport conditions. The series is designed to be affordable, fair and for your enjoyment and your training to greater heights, let s keep it that way. 18

19 Minions 50CC CLASS 3. ENGINES Only Honda GX H50 engines supplied by Action Karting/4 Stroke Workshop, stock engines will be allowed to compete in the series. Engines supplied will be sealed, together with a dynamometer report indicating that the horsepower is within the following parameters Horsepower = Max: Engine too small to turn the dyno. As supplied The following modifications, to be carried out by the appointed engine builder only, will be permitted: The governor may be removed The oil cut out relay may be removed Accelerator will be supplied with the engines. Only foot operated accelerator mechanisms are permitted Air induction is by means of the standard OEM air filter, or as an option, the green air filter may be substituted Only manifolds and silencers as supplied with the engines package are permitted Spark plugs. Only NGKCR5 spark plugs are permitted. Spark plugs must remain standard. Filing of electrodes or machining of thread body to allow indexing is strictly forbidden All motors must remain sealed at all times. Broken seals will lead to exclusion from the results and technical check of the motor New engines supplied with a temporary seal, may be run in and used in ONE race. The engine MUST be returned to the officially appointed engine builder after one race, to be dynamometer tested and a permanent seal fitted. Failure to return the engine before the next race will result in the engine being impounded at the next race to be dynamometer tested and sealed An engine may be changed during an event provided it has been dyno tested and sealed by the officially appointed engine builder, scrutinised and a scrutiniser s sticker affixed for that event. The engine may only be changed under the supervision of the scrutinizer Penalty as per penalty schedule Drive train The drive train consisting of clutch, sprockets and chain will be supplied with the engine, when purchased Final drive. The final drive will be by chain and sprocket as specified by the organiser. 19

20 Front sprocket = 16 teeth of.219 pitch Rear sprocket = 89 teeth of.219 pitch Chain =.219 pitch Clutch. Centrifugal as supplied by Engine Builder Brakes and Braking system The brake system is free within the following parameters Single disc acting on the rear axle One single piston OEM brake calliper as supplied with chassis A back up cable operated brake linkage must be fitted to all karts Chassis Restricted to a Cadet Kart Chassis, Any Brand Chassis are free but must be FIA/CIK homologated chassis Wheels and tyres Front maximum wheel width between bead = 115mm. Rear wheel base outer width of a maximum of 130mm.Kindly ensure your wheels comply with this rule to avoid penalty Tyres front = Mojo C Tyres rear = Mojo C It is prohibited to use any chemical treatment, or other means to artificially enhance the performance of tyres during official practice, qualifying and racing Teams must use one set of new MOJO tyres for a minimum of 5 (five) consecutive race meetings in which the team has taken part All tyres must be registered/ marked by the Chief Scrutineer or his assistant. Marking will take the form of an encoded marker/impression or suitable indelible colouring configuration as deemed prudent by the technical committees. It is the team s responsibility to ensure new tyres are marked before an event, or that previously used race tyres are on the kart before scrutinizing on the day. Tyres are marked and registered against the name of the competing team A register will be kept, noting all team tyre markings and event dates Note: A race meeting (event) may consist of more than one heat From the start of any event, only the marked tyres may be used. Tyre identification maybe checked at any time during an event. Tyre/s rendered unusable, in the opinion of the Clerk of the course and the Technical Consultant, during an event may be replaced. They must be replaced with used tyres, whether previously marked or not. The replaced tyre/s must be marked/remarked, before being fitted under the control of the Technical Consultant. No penalty applies if this procedure is followed. 20

21 An electronic log will be implemented to control the above regulations. (Only officially appointed persons can enter the data into the log.) Full wet weather tyres are not allowed Rear axle The rear axle will be of hollow steel with an outside diameter of 25mm (depending on the chassis standard fittings). No differential of any type is permitted. Maximum width of the rear axle, measured between the outer edges of the wheel rims, must not exceed 1150mm Minimum weight The minimum weight of the kart including driver will be 75kg from commencement of free practice. All ballast MUST be attached to the kart chassis in a suitable weight bracket. See penalty schedule for underweight penalties Underweight as a result of losing a component. At the sole discretion and under supervision of the Clerk of the Course or Chief Scrutineer, the kart, with the same driver, may be re-weighed after the component has been replaced and before re-joining the race, without penalty. The Clerk of the Course or Chief Scrutineer must sign off the weight record. Failure to re-weigh the kart with same driver, under supervision of the Clerk of the Course or Chief Scrutineer, before re-joining the race will result in disqualification even if the kart is subsequently compliant with Technical rule Seats Seats may consist of any material, but must be CIK/FIA approved Side pods, bibs, rear bumpers and nose cones: All karts will be equipped with the regulation side pods, bibs and nose cones. As specified by the organizer or CIK/FIA homologated units. They shall remain in position at all times. No substitutes allowed Fuel Teams will provide their own fuel for practice qualifying and race. Only 93 or 95 Octane pump fuel is permitted. For the race, fuel must be placed, in suitable containers clearly marked with the team name, in the refuel area. Refer to rule 12 of the Prokart Rules and Regulations for refuelling procedure Fuel may not be stored in competitor pits after the start of free practice Penalty as per penalty schedule ANY modifications to the flow of fuel from the fuel tank to the carburettor are not allowed. This includes modifications and/or addition of parts to fuel pumps, fuel lines, carburettors and any other part that controls the delivery of fuel to the engine. This will immediately be deemed an advantage over others and penalty will be applied as per the penalty schedule. 21

22 3.11. Repairs, servicing and maintenance of engines Routine servicing and maintenance, such as oil, filters, spark plug changes, clutch lubrication and tappet clearance settings may be undertaken by the team. Any repair or maintenance that requires the engine seal to be broken MUST be undertaken by the officially appointed engine builder Repairs, rebuilding and maintenance of engines All engines will be sealed, at all times, by the officially appointed engine builder for each Class Should an engine/s need to be worked on, parts replaced, or a general check be done to the motor\s, the following procedure will be adhered to: The engine will be delivered to the officially appointed engine builder for that Class. All work will be carried out by the officially appointed engine builder, after which the motor\s will be resealed. Numbered seals will be fitted to each engine prior to delivery by the Organizer. These must remain intact. A broken seal will result in exclusion In order to control the parts used and or replaced, only OEM engine spares available from an appointed OEM agent will be accepted as replacement engine parts. Any parts requiring further machining will be carried out by an approved engineering company. During this stage the balance of the motor\s will remain in the custody of the officially appointed engine builder until such time as the refurbished parts are returned and checked for compliance by the CTC of the series The only person allowed to strip and reassemble any motor/s is the officially appointed engine builder or his appointed representative for each class Motors must be presented with intact seals Official engine builder Stroke Workshop, 23 Fortress road, Rhodesfield, Kempton is the officially appointed engine builder. 4 Stroke Workshop will be responsible for the servicing, repair, sealing, dyno testing of all engines to be used in the Prokart Midget Series. It is the responsibility of the official engine builder to report any irregularities and to maintain a log book of all engines in the series, in which will be recorded the engine make and model, plus dyno results after each dyno test It is the explicit wish of the Organizer that this series becomes a training ground and a natural outlet for persons wishing to compete under normal motor sport conditions. The series is designed for your enjoyment and your training to greater heights, let s keep it that way. 22

23 4. MIDGET CLASS 4.1. ENGINES Only Honda GX 160 engines supplied by Action Karting/4 Stroke Workshop, stock engines will be allowed to compete in the series. Engines supplied will be sealed, together with a dynamometer report indicating that the horsepower is within the following parameters Only OEM Honda or Hoffman carburettors with size.68 jet and standard emulsion tube are permissible Only OEM Briggs and Stratton series approved fuel pumps are permissible Horsepower = Max: 10.2hp as per the software output of the dynamometer calibrated at the beginning of the season. Upgrades to the dynamometer s sensors and software modules may require recalibration of the dynamometer itself, resulting in a change of the maximum horsepower reading. This may result in a different reading as per the regulations and members will be notified of this when the dynamometer changes. All care is taken to ensure that when re-calibration occurs resulting in a change in readings, the maximum output reported by the software is still in line with the series base tests at the beginning of the season. So in the event the dynamometer has a different reading to the base reading, all new tests will be conducted according to the new base test results The following modifications, to be carried out by the appointed engine builder only, will be permitted: The governor may be removed The oil cut out relay may be removed Accelerator will be supplied with the engines. Only foot operated accelerator mechanisms are permitted Air induction is by means of the standard OEM air filter, or as an option, the green air filter may be substituted Only manifolds and silencers as supplied with the engines package are permitted Spark plugs. Only NGK BPR6ES spark plugs are permitted. Spark plugs must remain standard. Filing of electrodes or machining of thread body to allow indexing is strictly forbidden All motors must remain sealed at all times. Broken seals will lead to exclusion from the results and technical check of the motor New engines supplied with a temporary seal, may be run in and used in ONE race. The engine MUST be returned to the officially appointed engine builder after one race, to be dynamometer tested and a permanent seal fitted. Failure to return the engine before the next race will result in the engine being impounded at the next race to be dynamometer tested and sealed. 23

24 An engine may be changed during an event provided it has been dyno tested and sealed by the officially appointed engine builder, scrutinised and a scrutiniser s sticker affixed for that event. The engine may only be changed under the supervision of the scrutinizer Penalty as per penalty schedule Drive train The drive train consisting of clutch, sprockets and chain will be supplied with the engine, when purchased Final drive. The final drive will be by chain and sprocket as specified by the organiser Front sprocket = 20 teeth of.219 pitch Rear sprocket = 68 teeth of.219 pitch Chain =.219 pitch Clutch. Centrifugal as supplied by Engine Builder. Magnum centrifugal dry type clutch with white springs as supplied by the organiser Brakes and Braking system The brake system is free within the following parameters Single disc acting on the rear axle One single piston OEM brake calliper as supplied with chassis One two piston aftermarket replacement brake calliper of the following type: MA20 with Homologation code: 09/RFR/20 as supplied by 4 stroke workshop A back up cable operated brake linkage must be fitted to all karts Chassis Restricted to a Mini Kart Chassis, Any Brand Chassis are free but must be FIA/CIK homologated chassis Wheels and tyres Front maximum wheel width between bead = 135mm. Rear wheel base outer width of a maximum of 1110mm Kindly ensure your wheels comply with this rule to avoid penalty Tyres front = x 4.0, Mojo Tyres Tyres rear = x 5.0, Mojo Tyres. 24

25 It is prohibited to use any chemical treatment, or other means to artificially enhance the performance of tyres during official practice, qualifying and racing Teams must use one set of new MOJO tyres for a minimum of 5 (five) consecutive race meetings in which the team has taken part All tyres must be registered/ marked by the Chief Scrutineer or his assistant. Marking will take the form of an encoded marker/impression or suitable indelible colouring configuration as deemed prudent by the technical committees. It is the team s responsibility to ensure new tyres are marked before an event, or that previously used race tyres are on the kart before scrutinizing on the day. Tyres are marked and registered against the name of the competing team A register will be kept, noting all team tyre markings and event dates Note: A race meeting (event) may consist of more than one heat From the start of any event, only the marked tyres may be used. Tyre identification maybe checked at any time during an event. Tyre/s rendered unusable, in the opinion of the Clerk of the course and the Technical Consultant, during an event may be replaced. They must be replaced with used tyres, whether previously marked or not. The replaced tyre/s must be marked/remarked, before being fitted under the control of the Technical Consultant. No penalty applies if this procedure is followed An electronic log will be implemented to control the above regulations. (Only officially appointed persons can enter the data into the log.) Full wet weather tyres are not allowed Rear axle The rear axle will be of hollow steel with an outside diameter of 30mm (depending on the chassis standard fittings). No differential of any type is permitted. Maximum width of the rear axle, measured between the outer edges of the wheel rims, must not EXCEED 1150mm 4.7. Minimum weight The minimum weight of the kart including driver will be 110kg from commencement of free practice. All ballast MUST be attached to the kart chassis in a suitable weight bracket. See penalty schedule for underweight penalties Underweight as a result of losing a component. At the sole discretion and under supervision of the Clerk of the Course or Chief Scrutineer, the kart, with the same driver, may be re-weighed after the component has been replaced and before re-joining the race, without penalty. The Clerk of the Course or Chief Scrutineer must sign off the weight record. Failure to re-weigh the kart with same driver, under supervision of the Clerk of the Course or Chief Scrutineer, before re-joining the race will result in disqualification even if the kart is subsequently compliant with Technical rule Seats Seats may consist of any material, but must be CIK/FIA approved. 25